<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="./lib/vue.js"></script>
  </head>
  <body>
    <div id="app">
      <h1>{{title}}</h1>
      <div>{{"aab"}}</div>
      <div>{{age>18?"成年":"未成年"}}</div>
      <div>{{arr.join('-')}}</div>
    </div>
    <script>
      let vm = new Vue({
        el: "#app",
        data() {
          return {
            title: "你好",
            age: 20,
            arr: [9, 8, 2],
          };
        },
      });
    </script>
  </body>
</html>
